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109385491580 = 22561109822571
BaseRepresentation
bin110010111011111100…
…0100010010001111100
3101110100021002201021222
41211313320202101330
53243010141212310
6122130114412512
710621450223501
oct1456770422174
9343307081258
10109385491580
1142432292912
1219248b91138
13a4130c1661
1454197414a8
152ca31b1055
hex1977e2247c

109385491580 has 48 divisors (see below), whose sum is σ = 235617523680. Its totient is φ = 42642028800.

The previous prime is 109385491573. The next prime is 109385491601. The reversal of 109385491580 is 85194583901.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278306 + ... + 544265.

It is an arithmetic number, because the mean of its divisors is an integer number (4908698410).

Almost surely, 2109385491580 is an apocalyptic number.

109385491580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109385491580 is an abundant number, since it is smaller than the sum of its proper divisors (126232032100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109385491580 is a wasteful number, since it uses less digits than its factorization.

109385491580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822750 (or 822748 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 53.

The spelling of 109385491580 in words is "one hundred nine billion, three hundred eighty-five million, four hundred ninety-one thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 61 109 122 218 244 305 436 545 610 1090 1220 2180 6649 13298 26596 33245 66490 132980 822571 1645142 3290284 4112855 8225710 16451420 50176831 89660239 100353662 179320478 200707324 250884155 358640956 448301195 501768310 896602390 1003536620 1793204780 5469274579 10938549158 21877098316 27346372895 54692745790 109385491580